I have simple standalone ASan examples working on Android, and now I'd
like to try using ASan with the Android build system. I'm building
the release_33 branch of llvm+clang+compiler-rt with CMake. To test,
I'm looking at libjpg, because with just a small change its Android.mk
it compiles in a few seconds and without needing any additional
dependencies.
When I run 'djpeg' on JellyBean, ASan reports the error message below.
Can you please help me interpret it? Do you know what I might be
doing wrong?
$ adb shell "cd /data/data && ASAN_OPTIONS=debug=1,verbosity=1
LD_PRELOAD=libclang_rt.asan-arm-android.so LD_LIBRARY_PATH=. ./djpeg
./testimg.jpg"
==28210==Parsed ASAN_OPTIONS: debug=1,verbosity=1
==28210==AddressSanitizer: libc interceptors initialized
|| `[0x20000000, 0xffffffff]` || HighMem ||
|| `[0x04000000, 0x1fffffff]` || HighShadow ||
|| `[0x00040000, 0x03ffffff]` || ShadowGap ||
MemToShadow(shadow): 0x00000000 0x00000000 0x00800000 0x03ffffff
red_zone=16
malloc_context_size=30
SHADOW_SCALE: 3
SHADOW_GRANULARITY: 8
SHADOW_OFFSET: 0
==28210==Shadow memory range interleaves with an existing memory
mapping. ASan cannot proceed correctly. ABORTING.
==28210==Process memory map follows:
0x00008000-0x0000f000 /data/data/djpeg
0x0000f000-0x00010000 /data/data/djpeg
0x00010000-0x00011000
0x40094000-0x400a7000 /system/bin/linker
0x400a7000-0x400a8000 /system/bin/linker
0x400a8000-0x400a9000 /system/bin/linker
0x400a9000-0x400b5000
0x400e7000-0x400e8000 /system/lib/libstdc++.so
0x400e8000-0x400e9000 /system/lib/libstdc++.so
0x400e9000-0x400ea000
0x40110000-0x40125000 /system/lib/libm.so
0x40125000-0x40126000 /system/lib/libm.so
0x40126000-0x40127000
0x40159000-0x4018b000 /data/data/libclang_rt.asan-arm-android.so
0x4018b000-0x4018c000 /data/data/libclang_rt.asan-arm-android.so
0x4018c000-0x4018d000 /data/data/libclang_rt.asan-arm-android.so
0x4018d000-0x405b8000
0x405b8000-0x405fb000 /system/lib/libc.so
0x405fb000-0x405fe000 /system/lib/libc.so
0x405fe000-0x40609000
0x40609000-0x406a5000 /data/data/libjpeg.so
0x406a5000-0x406a6000
0x406a6000-0x406a7000 /data/data/libjpeg.so
0x406a7000-0x406a8000 /data/data/libjpeg.so
0x406a8000-0x406b4000 /dev/__properties__ (deleted)
0x406e6000-0x406e8000
0x4073e000-0x40740000
0x40748000-0x4074a000
0xbe8b7000-0xbe8d8000 [stack]
0xffff0000-0xffff1000 [vectors]
==28210==End of process memory map.
Thanks,
Greg
> When I run 'djpeg' on JellyBean, ASan reports the error message below. > > ==28210==Shadow memory range interleaves with an existing memory > mapping. ASan cannot proceed correctly. ABORTING.Got figured out. I needed to use TARGET_LDFLAGS. LOCAL_LDFLAGS seems to be ignored in my clang build. LOCAL_CFLAGS += -fsanitize=address TARGET_LDFLAGS +=-fsanitize=address -target arm-linux-androideabi And once doing that, I also needed to build against Android API 8 or later: $ ndk-build V=1 NDK_TOOLCHAIN_VERSION=clang3.3 APP_PLATFORM=android-8 -Greg On Tue, Jun 4, 2013 at 11:21 AM, Greg Fitzgerald <garious at gmail.com> wrote:> I have simple standalone ASan examples working on Android, and now I'd > like to try using ASan with the Android build system. I'm building > the release_33 branch of llvm+clang+compiler-rt with CMake. To test, > I'm looking at libjpg, because with just a small change its Android.mk > it compiles in a few seconds and without needing any additional > dependencies. > > When I run 'djpeg' on JellyBean, ASan reports the error message below. > Can you please help me interpret it? Do you know what I might be > doing wrong? > > $ adb shell "cd /data/data && ASAN_OPTIONS=debug=1,verbosity=1 > LD_PRELOAD=libclang_rt.asan-arm-android.so LD_LIBRARY_PATH=. ./djpeg > ./testimg.jpg" > > ==28210==Parsed ASAN_OPTIONS: debug=1,verbosity=1 > ==28210==AddressSanitizer: libc interceptors initialized > || `[0x20000000, 0xffffffff]` || HighMem || > || `[0x04000000, 0x1fffffff]` || HighShadow || > || `[0x00040000, 0x03ffffff]` || ShadowGap || > MemToShadow(shadow): 0x00000000 0x00000000 0x00800000 0x03ffffff > red_zone=16 > malloc_context_size=30 > SHADOW_SCALE: 3 > SHADOW_GRANULARITY: 8 > SHADOW_OFFSET: 0 > ==28210==Shadow memory range interleaves with an existing memory > mapping. ASan cannot proceed correctly. ABORTING. > ==28210==Process memory map follows: > 0x00008000-0x0000f000 /data/data/djpeg > 0x0000f000-0x00010000 /data/data/djpeg > 0x00010000-0x00011000 > 0x40094000-0x400a7000 /system/bin/linker > 0x400a7000-0x400a8000 /system/bin/linker > 0x400a8000-0x400a9000 /system/bin/linker > 0x400a9000-0x400b5000 > 0x400e7000-0x400e8000 /system/lib/libstdc++.so > 0x400e8000-0x400e9000 /system/lib/libstdc++.so > 0x400e9000-0x400ea000 > 0x40110000-0x40125000 /system/lib/libm.so > 0x40125000-0x40126000 /system/lib/libm.so > 0x40126000-0x40127000 > 0x40159000-0x4018b000 /data/data/libclang_rt.asan-arm-android.so > 0x4018b000-0x4018c000 /data/data/libclang_rt.asan-arm-android.so > 0x4018c000-0x4018d000 /data/data/libclang_rt.asan-arm-android.so > 0x4018d000-0x405b8000 > 0x405b8000-0x405fb000 /system/lib/libc.so > 0x405fb000-0x405fe000 /system/lib/libc.so > 0x405fe000-0x40609000 > 0x40609000-0x406a5000 /data/data/libjpeg.so > 0x406a5000-0x406a6000 > 0x406a6000-0x406a7000 /data/data/libjpeg.so > 0x406a7000-0x406a8000 /data/data/libjpeg.so > 0x406a8000-0x406b4000 /dev/__properties__ (deleted) > 0x406e6000-0x406e8000 > 0x4073e000-0x40740000 > 0x40748000-0x4074a000 > 0xbe8b7000-0xbe8d8000 [stack] > 0xffff0000-0xffff1000 [vectors] > ==28210==End of process memory map. > > Thanks, > Greg
Since JellyBean or so Android switched to PIE binaries. ASan only supports those. On Wed, Jun 5, 2013 at 12:28 AM, Greg Fitzgerald <garious at gmail.com> wrote:>> When I run 'djpeg' on JellyBean, ASan reports the error message below. >> >> ==28210==Shadow memory range interleaves with an existing memory >> mapping. ASan cannot proceed correctly. ABORTING. > > Got figured out. I needed to use TARGET_LDFLAGS. LOCAL_LDFLAGS seems > to be ignored in my clang build. > > LOCAL_CFLAGS += -fsanitize=address > TARGET_LDFLAGS +=-fsanitize=address -target arm-linux-androideabi > > And once doing that, I also needed to build against Android API 8 or later: > $ ndk-build V=1 NDK_TOOLCHAIN_VERSION=clang3.3 APP_PLATFORM=android-8 > > -Greg > > > On Tue, Jun 4, 2013 at 11:21 AM, Greg Fitzgerald <garious at gmail.com> wrote: >> I have simple standalone ASan examples working on Android, and now I'd >> like to try using ASan with the Android build system. I'm building >> the release_33 branch of llvm+clang+compiler-rt with CMake. To test, >> I'm looking at libjpg, because with just a small change its Android.mk >> it compiles in a few seconds and without needing any additional >> dependencies. >> >> When I run 'djpeg' on JellyBean, ASan reports the error message below. >> Can you please help me interpret it? Do you know what I might be >> doing wrong? >> >> $ adb shell "cd /data/data && ASAN_OPTIONS=debug=1,verbosity=1 >> LD_PRELOAD=libclang_rt.asan-arm-android.so LD_LIBRARY_PATH=. ./djpeg >> ./testimg.jpg" >> >> ==28210==Parsed ASAN_OPTIONS: debug=1,verbosity=1 >> ==28210==AddressSanitizer: libc interceptors initialized >> || `[0x20000000, 0xffffffff]` || HighMem || >> || `[0x04000000, 0x1fffffff]` || HighShadow || >> || `[0x00040000, 0x03ffffff]` || ShadowGap || >> MemToShadow(shadow): 0x00000000 0x00000000 0x00800000 0x03ffffff >> red_zone=16 >> malloc_context_size=30 >> SHADOW_SCALE: 3 >> SHADOW_GRANULARITY: 8 >> SHADOW_OFFSET: 0 >> ==28210==Shadow memory range interleaves with an existing memory >> mapping. ASan cannot proceed correctly. ABORTING. >> ==28210==Process memory map follows: >> 0x00008000-0x0000f000 /data/data/djpeg >> 0x0000f000-0x00010000 /data/data/djpeg >> 0x00010000-0x00011000 >> 0x40094000-0x400a7000 /system/bin/linker >> 0x400a7000-0x400a8000 /system/bin/linker >> 0x400a8000-0x400a9000 /system/bin/linker >> 0x400a9000-0x400b5000 >> 0x400e7000-0x400e8000 /system/lib/libstdc++.so >> 0x400e8000-0x400e9000 /system/lib/libstdc++.so >> 0x400e9000-0x400ea000 >> 0x40110000-0x40125000 /system/lib/libm.so >> 0x40125000-0x40126000 /system/lib/libm.so >> 0x40126000-0x40127000 >> 0x40159000-0x4018b000 /data/data/libclang_rt.asan-arm-android.so >> 0x4018b000-0x4018c000 /data/data/libclang_rt.asan-arm-android.so >> 0x4018c000-0x4018d000 /data/data/libclang_rt.asan-arm-android.so >> 0x4018d000-0x405b8000 >> 0x405b8000-0x405fb000 /system/lib/libc.so >> 0x405fb000-0x405fe000 /system/lib/libc.so >> 0x405fe000-0x40609000 >> 0x40609000-0x406a5000 /data/data/libjpeg.so >> 0x406a5000-0x406a6000 >> 0x406a6000-0x406a7000 /data/data/libjpeg.so >> 0x406a7000-0x406a8000 /data/data/libjpeg.so >> 0x406a8000-0x406b4000 /dev/__properties__ (deleted) >> 0x406e6000-0x406e8000 >> 0x4073e000-0x40740000 >> 0x40748000-0x4074a000 >> 0xbe8b7000-0xbe8d8000 [stack] >> 0xffff0000-0xffff1000 [vectors] >> ==28210==End of process memory map. >> >> Thanks, >> Greg